Wiki

The most recent version of this page is a draft.DiffThis version (10 Feb 2021 13:07) was approved by Sanjeeva Reddy.

This is an old revision of the document!


Click here to return to the Basic page

Index LookUp Table



Description

The Index Lookup Table block lets you access values stored in a lookup table (LUT). They're accessible through a table index input pin.

Usage

click Table to open the Table Editor window. There are two ways to enter values:

  1. Enter them directly and use Save table value.
  2. Use Load table value to load data from a file.

The first option lets you enter maximum value(s).

Description: For this algorithm, the input is the index value into the LUT. The module expect the index to be in integer format 32.0. Zero (0) will index the first value in the table.

Targets Supported

NameADSP-214xx(Sample)ADSP-214xx(Block)ADSP-215xx/ADSP-SC5xx(Sample)ADSP-215xx/ADSP-SC5xx(Block)
Index LookUp Table Yes YesYes Yes


Pins

Input

NameTypeDescription
ResetControlResets the maximum value
TableIndexControlUsed to access the LUT values

Output

NameTypeDescription
Output0ControlLUT value for the Table index


Configurable Parameters

GUI Parameter NameDefault ValueRangeFunction Description
NoOfTableValues332 to 800 Controls the Maximum lookup table values.Change in this value requires re-compilation
IsDBFalseTrue/FalseControls the tables values either be in linear or dB
TableValuesAll 33 values are 1 - Table Values


DSP Parameters

Parameter NameDescriptionADSP-214xx/SC5xx/215xx
MaxIndexSize of the table valuesFloat
TableValuesTable valuesFloat


DSP Parameter Computation

MaxIndex = NoOfTableValues -1

/srv/wiki.analog.com/data/pages/resources/tools-software/sigmastudiov2/modules/basic/indexlookuptable.txt · Last modified: 12 May 2021 16:40 by Nikhin Shetty